Re: [Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver

Hi, On 05/23/2017 01:12 PM, Ayan Chatterjee wrote: Hi, Is there any buffer on the receiver side which stores received packets before decoding ? Yes, there are many. GNU Radio uses shared buffers to exchange data (samples) between blocks. See here: https://www.gnuradio.org/blog/buffers/ B

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver

Hi, Is there any buffer on the receiver side which stores received packets before decoding ? Regards, Ayan On Tue, May 23, 2017 at 4:36 PM, Bastian Bloessl wrote: > Hi, > > On 05/23/2017 12:54 PM, Ayan Chatterjee wrote: > >> Hi, >> >> In IEEE 802.11 a/g/p Receiver (https://github.com/bastibl/g

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver

Hi, On 05/23/2017 12:54 PM, Ayan Chatterjee wrote: Hi, In IEEE 802.11 a/g/p Receiver (https://github.com/bastibl/gr-ieee802-11), when a packet gets dropped, does the transmitter resend another packet with the same sequence number ? No. Best, Bastian _

[Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver

Hi, In IEEE 802.11 a/g/p Receiver (https://github.com/bastibl/gr-ieee802-11), when a packet gets dropped, does the transmitter resend another packet with the same sequence number ? Regards, Ayan ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p transreceiver module - Number of symbols per frame?

Hi, On 05/21/2017 11:45 PM, Qurat-Ul-Ann Akbar wrote: Hi, I want to look at the number of symbols copied for *each frame received *in wifi_rx flow graph. I have been trying to understand how the start of each frame is calculated and by looking at the code it seems like its being done in the

[Discuss-gnuradio] IEEE 802.11 a/g/p transreceiver module - Number of symbols per frame?

Hi, I want to look at the number of symbols copied for *each frame received *in wifi_rx flow graph. I have been trying to understand how the start of each frame is calculated and by looking at the code it seems like its being done in the wifi sync_short block where the auto correlation coefficient

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver - Packets not properly getting received

Hi, > On 19. May 2017, at 08:17, Ayan Chatterjee wrote: > While using https://github.com/bastibl/gr-ieee802-11 receiver, I am getting > some wrong packets, which when opened with Wireshark give infos like: > > - 1506 Fragmented IEEE 802.11 frame > - 1345 Data, SN =3977, FN =1, Flags= p, PRMF >

[Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver - Packets not properly getting received

Hi all, While using https://github.com/bastibl/gr-ieee802-11 receiver, I am getting some wrong packets, which when opened with Wireshark give infos like: - 1506 Fragmented IEEE 802.11 frame - 1345 Data, SN =3977, FN =1, Flags= p, PRMF - 51 Association Request, SN = 1776, FN=14, flags = p...M.. H

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver module - Making changes in WiFi PHY Hier Block

Okay I will do that. Thanks! On the receiver side I know the equalizer block does the phase offset correction but usually pilot tones in each OFDM symbol are used for that. When I looked at the file *gnuradio /gr-digital

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver module - Making changes in WiFi PHY Hier Block

Hi, Am 25.03.2017 um 16:12 schrieb Qurat-Ul-Ann Akbar: Thanks for pointing me to the file. This list of pilot tones with different polarities seems to be hard coded. Is there any way of changing the amplitude value of this complex number encoded on the pilot tone. E.g. if I want to change all th

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver module - Making changes in WiFi PHY Hier Block

Thanks for pointing me to the file. This list of pilot tones with different polarities seems to be hard coded. Is there any way of changing the amplitude value of this complex number encoded on the pilot tone. E.g. if I want to change all the pilot tone values for frequency bin +7 from 1 to 1.2 how

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver module - Making changes in WiFi PHY Hier Block

Hi, On 03/24/2017 08:44 PM, Qurat-Ul-Ann Akbar wrote: > How is a particular polarity picked for the pilot tones in each symbol > with 52 subcarriers in GNU Radio? I can see the list in the OFDM Carrier > Allocator block but where is this exactly happening in the code? the pilots are copied here:

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver module - Making changes in WiFi PHY Hier Block

How is a particular polarity picked for the pilot tones in each symbol with 52 subcarriers in GNU Radio? I can see the list in the OFDM Carrier Allocator block but where is this exactly happening in the code? On Mon, Mar 20, 2017 at 3:37 PM, Bastian Bloessl wrote: > Hi, > > On 03/20/2017 09:17

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver module - Making changes in WiFi PHY Hier Block

Hi, On 03/20/2017 09:17 PM, Qurat-Ul-Ann Akbar wrote: > Hi, > > Thank you. I got it! I have another question. In the OFDM Carrier > Allocator block, there are 127 values for pilot symbols each of them > either (1,1,1,-1) or (-1,-1,-1,1). The pilot frequencies are > (-27,-7,7,21) according to IEEE

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver module - Making changes in WiFi PHY Hier Block

Hi, Thank you. I got it! I have another question. In the OFDM Carrier Allocator block, there are 127 values for pilot symbols each of them either (1,1,1,-1) or (-1,-1,-1,1). The pilot frequencies are (-27,-7,7,21) according to IEEE 802.11 standard. But I do not understand why are there 127 symbol

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver module - Making changes in WiFi PHY Hier Block

Hi, > On 20 Mar 2017, at 17:50, Qurat-Ul-Ann Akbar > wrote: > > If I want to make changes in the PHY hierarchical block, can I just make > changes in the grc file available in the examples folder and then recompile ? > Because I cant file a .cc file in the lib folder in IEEE_802.11 module a

[Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver module - Making changes in WiFi PHY Hier Block

Hi, If I want to make changes in the PHY hierarchical block, can I just make changes in the grc file available in the examples folder and then recompile ? Because I cant file a .cc file in the lib folder in IEEE_802.11 module and the source code for most blocks is in there. Thank you. ___

[Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver module - Making changes in WiFi PHY Hier Block

Hi, If I want to make changes in the PHY hierarchical block, can I just make changes in the grc file and then recompile ? Becauase ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver module - Counting Decoded Frames

Hi, > On 27 Feb 2017, at 22:58, Qurat-Ul-Ann Akbar > wrote: > I want to calculate the number of frames correctly decoded by the wifi_rx in > the IEEE 802.11 module. I can not find the source file for the block > WiFi_Decode Mac where I can place a counter for the successfully decoded > frame

[Discuss-gnuradio] IEEE 802.11 a/g/p Transceiver module - Counting Decoded Frames

Hi, I want to calculate the number of frames correctly decoded by the wifi_rx in the IEEE 802.11 module. I can not find the source file for the block WiFi_Decode Mac where I can place a counter for the successfully decoded frames. Can anyone tell me where this file is ? And is there any other way

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p transreceiver - Bit Error Rate in wifi_loopback

Hi, On 02/24/2017 07:59 PM, Qurat-Ul-Ann Akbar wrote: > I have been working with the 802.11 module for GNU Radio and I want to > enable my receiver to perform some bit error rate calculations. I ran > the wifi_loopbck and noticed that a bit error rate field appears in the > GUI. I have been trying

[Discuss-gnuradio] IEEE 802.11 a/g/p transreceiver - Bit Error Rate in wifi_loopback

Hi, I have been working with the 802.11 module for GNU Radio and I want to enable my receiver to perform some bit error rate calculations. I ran the wifi_loopbck and noticed that a bit error rate field appears in the GUI. I have been trying to see where and how is this error being calculated. Can

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p transceiver - Data not being received at any frequency other than 5.89G

D means that your network card dropped packets. That usually only happens if your computer is CPU-overloaded, so that the Operating system can't keep up with getting data from the network card. Of course, dropped packets mean that your received signal is irreparably damaged. You'll need to find a

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p transceiver - Data not being received at any frequency other than 5.89G

Hi, I changed the sample rate to 20 MHz and changed the beacon frames to be 11g and now the receiver receives some WiFi packets. But it shows a parse error which says : new mac frame (length 10) = frame too short to parse (<20) WIRESHARK: received new mess

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p transceiver - Data not being received at any frequency other than 5.89G

Hi, On 01/24/2017 12:17 AM, Qurat-Ul-Ann Akbar wrote: I did the following things that you suggested: 1) The gain is normalized and in the example file wifi_rx and tx it was set to 0.75. I changed the gain to a bunch of values but nothing is really changing. Also the scope plot in the receiver j

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p transceiver - Data not being received at any frequency other than 5.89G

I did the following things that you suggested: 1) The gain is normalized and in the example file wifi_rx and tx it was set to 0.75. I changed the gain to a bunch of values but nothing is really changing. Also the scope plot in the receiver just shows noise and even when I get some decoded message

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p transceiver - Data not being received at any frequency other than 5.89G

Hi, On 01/17/2017 11:57 PM, Qurat-Ul-Ann Akbar wrote: 1) The sequence numbers are not in accordance with the data. Sometimes the first packet I get has sequence number 0 but at other times I get sequence numbers like 5 or 41. The mac frame length is 524. An example sequence numbers pattern was 5

[Discuss-gnuradio] IEEE 802.11 a/g/p transceiver - Data not being received at any frequency other than 5.89G

Hello, I am using two USRPs N210 with CBX daughterboards connected to different machines and I have GNU Radio version 3.7 and uhd version 3.11. I installed the IEEE 802.11 a/g/p module for GNU Radio. I ran the wifi_rx and wifi_tx on different machines and the data I send gets printed on the conso

Re: [Discuss-gnuradio] IEEE 802.11 a

On 29 Dec 2013, at 15:21, Naveen Gupta wrote: > First of all thanks for your suggestion, > I am using gnuradio 3.7 & started installation of ieee 802.11 from > https://github.com/bastibl/gr-ieee802-11 During installation of log4cpp & > IT++ for sudo port install log4cpp I was getting sudo:port

Re: [Discuss-gnuradio] IEEE 802.11 a

First you need to install gr-foo from :https://github.com/bastibl/gr-foo After installing it open hierarchical blocks such as - /examples/ofdm_phy_hier.grc in GNURadio and click on generate. Then reload the blocks or close and open GNURadio. Hope it helps. On Sun, Dec 29, 2013 at 7:51 PM, Naveen

Re: [Discuss-gnuradio] IEEE 802.11 a

First of all thanks for your suggestion, I am using gnuradio 3.7 & started installation of ieee 802.11 from https://github.com/bastibl/gr-ieee802-11 During installation of log4cpp & IT++ for sudo port install log4cpp I was getting sudo:port:command not found. After successful installation of gr_iee

Re: [Discuss-gnuradio] IEEE 802.11 a

On Mon, Dec 23, 2013 at 7:08 AM, Naveen Gupta wrote: > I need to design IEEE802.11 a model in GNU radio platform. How should I > start,* I am a beginner *of GNU radio. Anyone please tell me? > > Hi Naveen, I recommend reading the manual pages for OFDM code, and work from there. Make sure you've

Re: [Discuss-gnuradio] IEEE 802.11 a

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi Naveen Gupta, What does "designing an IEEE802.11A Model" mean? A receiver? A channel model? A transceiver system? Implementing a complete Network Standard is, using any platform, a big task. As a beginner you might need to look at the existing fram

Re: [Discuss-gnuradio] IEEE 802.11 a

You may try your luck here: 1. https://www.cgran.org/wiki/BBN80211 but it runs on gnuradio version 3.1.1 2. MAC code by Uwicore lab http://www.uwicore.umh.es/ is unfortunately for gnuradio version 3.3 3. https://github.com/bastibl/gr-ieee802-11 runs on gnuradio 3.7 Let me know if you

[Discuss-gnuradio] IEEE 802.11 a

I need to design IEEE802.11 a model in GNU radio platform. How should I start,* I am a beginner *of GNU radio. Anyone please tell me? ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p receiver

Hi Martin, On 04/02/2013 03:56 PM, Martin Braun (CEL) wrote: I was fiddling around with the wiki today, and added it myself. It's pretty good, and I can recommend it for reading-- it gives a great overview over the module, but also some of the GNU Radio concepts. Thanks for your comment and f

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p receiver

On Tue, Apr 02, 2013 at 11:56:17AM +0200, Martin Braun (CEL) wrote: > Hi Bastian, > > this is nice stuff! I see you have a publication on the module, would > you mind adding it to our wiki page on papers, > http://gnuradio.org/redmine/projects/gnuradio/wiki/AcademicPapers ? I was fiddling around

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p receiver

Hi Bastian, this is nice stuff! I see you have a publication on the module, would you mind adding it to our wiki page on papers, http://gnuradio.org/redmine/projects/gnuradio/wiki/AcademicPapers ? Cheers, MB On Fri, Mar 29, 2013 at 11:08:49AM +0100, Bastian Bloessl wrote: > Hello all, > > I'm c

Re: [Discuss-gnuradio] IEEE 802.11 a/g/p receiver

On Fri, Mar 29, 2013 at 3:08 AM, Bastian Bloessl wrote: > I'm currently working on an IEEE 802.11 a/g/p receiver and I think that > meanwhile it has reached a state where others might be interested. With my > desktop PC I can decode 20MHz bandwidth signals without any under runs. > > I tested it

[Discuss-gnuradio] IEEE 802.11 a/g/p receiver

Hello all, I'm currently working on an IEEE 802.11 a/g/p receiver and I think that meanwhile it has reached a state where others might be interested. With my desktop PC I can decode 20MHz bandwidth signals without any under runs. I tested it with quite a lot of 11a devices and also with 11p p